commit b674559fc8a67ae7d30fe3ab3062d5855ac77d2d
author Paolo Bonzini <pbonzini@redhat.com> Mon Aug 29 17:04:01 2011 +0200
committer Peter Maydell <peter.maydell@linaro.org> Mon Oct 17 15:41:08 2011 +0000
tree 988c07623b7c05651c10839e55b31899963d9ead
parent dfc7a4ce48fdb5cb727557fd338b7d995fb34e89

Make cpu_single_env thread-local

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

cpu-all.h

diff --git a/cpu-all.h b/cpu-all.h
index 42a5fa0..e37ebfc 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -20,6 +20,7 @@
 #define CPU_ALL_H
 
 #include "qemu-common.h"
+#include "qemu-tls.h"
 #include "cpu-common.h"
 
 /* some important defines:
@@ -334,7 +335,8 @@
 void QEMU_NORETURN cpu_abort(CPUState *env, const char *fmt, ...)
     GCC_FMT_ATTR(2, 3);
 extern CPUState *first_cpu;
-extern CPUState *cpu_single_env;
+DECLARE_TLS(CPUState *,tls_cpu_single_env);
+#define cpu_single_env get_tls(tls_cpu_single_env)
 
 /* Flags for use in ENV->INTERRUPT_PENDING.
 

darwin-user/main.c

diff --git a/darwin-user/main.c b/darwin-user/main.c
index 1a881a0..c0f14f8 100644
--- a/darwin-user/main.c
+++ b/darwin-user/main.c
@@ -729,8 +729,6 @@
 
 /* XXX: currently only used for async signals (see signal.c) */
 CPUState *global_env;
-/* used only if single thread */
-CPUState *cpu_single_env = NULL;
 
 /* used to free thread contexts */
 TaskState *first_task_state;

exec.c

diff --git a/exec.c b/exec.c
index d0cbf15..afc5fe3 100644
--- a/exec.c
+++ b/exec.c
@@ -120,7 +120,7 @@
 CPUState *first_cpu;
 /* current CPU in the current thread. It is only valid inside
    cpu_exec() */
-CPUState *cpu_single_env;
+DEFINE_TLS(CPUState *,tls_cpu_single_env);
 /* 0 = Do not count executed instructions.
    1 = Precise instruction counting.
    2 = Adaptive rate instruction counting.  */